Injector-burner.



No. 719,382. PATENTED JAN. 27. 1903.

is. msnm & M. T'. CARROLL.

INJECTOR BURNER.

APPLIOATION FILED. JULY 26, 1902. N0 MODEL.

fwammw l Q UNTTnn STATES PATENT FFTCE.

EVERETT B. SHAV AND MARTIN T. CARROLL, OF KANE, PENNSYLVANIA.

INJECTOR-BURNER.

SPECIFCATON forming part of Letters Patent No. 719,382, dated January27, 1903.

Application tiled July 26,1902. Serial No. 117,151. (No model.)

.To all whom t may concern:

Be it known that we, EVERETT B. SHAW and MARTIN T. CARROLL, citizens ofthe United States, residing at Kane, in the county of Mc- Kean and Stateof Pennsylvania, have invented certain new and useful Improvements inInjector-Burners; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to Whichit appertains to make and use thesame.

The present invention relates to improvements in injector-burners, andparticularly to such as are provided with means for mixing a pluralityof fuels and also with means for controlling the supply of fuel beingconsumed.

The object in view is the utilization of steam as a driving medium forforcing several fuels to the point of combustion.

A further object is the provision of means for controlling` the degreeof heat produced by the burner.

With these and other objects in view the invention consists of aplurality of nested nozzles, means for supplying air and a iiuid fuel toone of said nozzles, means for supplying a fuel to another of saidnozzles, and means for supplying steam to the nozzle in the rear of saidfuel-nozzles.

It further consists, in combination with a suitable mixer, of a tubehaving its end closed and a transverse slot cut in its side wall, and asleeve surrounding said tube and adapted to be passed over said slot.

It also consists in certain other novel constructions, combinations, andarrangement-s of parts, as will be hereinafter fully described andclaimed.

In the accompanying drawings, Figure 1 represents aview in sideelevation of an injector-burner embodying the features of the presentinvention, parts being shown in section for disclosing the interiorstructure. Fig. 2 represents a similar View of the pressure-regulatingsleeve and surrounding parts. Fig. 3 represents a transverse sectiontaken on the line 3 3 of Fig. 2.

In the employment of hydrocarbon and other fluid fuels it has been founddesirable, owing to the inferiority of one fuel employed, to use aplurality of different fuels in order that the necessary pressure may bemaintained, and in order to control such pressure various forms ofvalves have been employed with varying degrees of success. However, by aseries of careful experiments we have ascertained that good results canbe secured by the particular structure disclosed in the accompanyingdrawings, in which- 1 indicates a suitable steam-supply pipe, into theend of which is threaded or other- Wise suitably secured a nozzle 2. Theend of the pipe 1 is preferably det-achably secured by means of acoupling 3 to the rear end of a tube 1. An air-supply duct 5, controlledby a suitable plug 6, discharges into the tube 4, and a preferablycomparatively small ltube 7 leads into tube ft for supplying oilthereto. A nozzle 8 has its rear end securedto the front end of tube dand surrounds the nozzle 2, the discharge end ofl the nozzle 8 extendingbeyond the corresponding end of nozzle 2. Surrounding nozzle 8 andsuitably secured to the front end of tube et is a pipe 9, having asuitable gas-supply 10, communicating therewith and formed on its frontend with a suitable discharge-nozzle 11, surrounding nozzle S andextending in front of the same. A tube 12 is attached to the front endof pipe 9 and carries any suitable pressure-gage 13. The tube 12 may beof any preferred length and is adapted to be passed into thecombustion-chamber of a furnace. The front end of tube 12 is threadedand provided with a closing-cap 14. A transverse slot 15 is cut throughthe side wall of tube 12, and a suitable sleeve 16 surrounds said tubeand has its front end engaging the threads of the for- Ward end of thetube. The rear end of sleeve 1b' is provided with apertures 17 17 or anyother suitable means for receiving an operating-tool.

In operation steam is supplied through nozzle 2, the discharge of whichcauses a suction of air through duct 5 and oil through tube 7 saidelements being partially mixed Within the tube 4 and then being broughtinto contact with the steam being discharged from nozzle 2. The furtherdischarge of the steam will drive before it the mixed air and oilthrough nozzle 8, thereby drawing in a suitable supply of gas throughpipe 10, which with the mixed oil, air, and steam will be too' 2 nassedriven through nozzlel 11 and along tube 12 until it strikes the cap 14.The mixed products will now be discharged through slot 15 and may beignited. The gage 13 will indicate the pressure of the fuel beingburned, and such pressure may be controlled b v rotation of sleeve 16,whereby the width of slot 15 may be readily increased or decreased.

Although we have specifically set forth one particular embodiment of thepresentinvention, yet it will be understood that We do not desire tolimit ourselves to the minor details of structure, but shall take theliberty to deviate therefrom to any degree Within the spirit and scopeof the present invention.

Having now described our invention, what We claim as new, and desire tosecure by Letters Patent, is-

1. In a device ofthe class described, the combination with a suitablefuel-supply, of a tube communicating therewith having its free endthreaded and provided with a slot, a cap surrounding the end of saidtube and extending to the plane of one edge of said slot, and a sleevesurrounding said tube, and engaging the threads thereof and extendingtothe plane of the opposite edge of the slot, substantially asdescribed.

2. A device of the class described, comprising a pressure-supply pipe, anozzle carried thereby, a tube surrounding said nozzle, means supplyingair to said tube, means supplying oil to said tube, a nozzle carried bysaid tube inclosing the forward end of the pressure-supply nozzle, apipe surrounding said air and oil nozzle, provided with a nozzleinclosing a part of said last-mentioned nozzle, and a gas-supply forsaid last-mentioned pipe, substantially as described.

3. In a device of the class described, the combination witha suitablefuel-supply, of a tube communicating therewith, a slot formed in thewall of said tube, a sleeve threaded onto said tube and adapted to bemoved across the slot, and annular abutting means on said tube on theopposite side of said sleeve, substan.7 tially as described.

4. In a device ofthe class described, the combination with a suitablefuel-supply, of a tube communicating therewith, a cap closingsaid tubeand forming an abutment, a transverse slot being cut in the said tubeand having its edge in line with the abutment, and a sleeve threadedonto said tube and moving longitudinally thereof, and having its endextending in the' horizontal plane of said abutment, the end of thesleeve forming an annular abutment, substantially as described.

5. In a device of the class described, the combination with a suitablefuelsupply tube having its free end threaded and provided with atransverse slot, a cap threaded onto said end and forming an abutment,and a sleeve surrounding said tube and engaging the threads at the endthereof opposite said abutment, substantially as described.

In testimony whereof we hereunto aiiix our signatures in presence of twowitnesses.

Witnesses:

J. G. MONTGOMERY, C. B. GILLIS.

